76 lines
2.8 KiB
C++
76 lines
2.8 KiB
C++
// Copyright 2020 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Modified from
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// chrome/browser/ui/views/frame/glass_browser_caption_button_container.h
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#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_CONTAINER_H_
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#define ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_CONTAINER_H_
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#include "base/scoped_observation.h"
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#include "ui/base/metadata/metadata_header_macros.h"
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#include "ui/base/pointer/touch_ui_controller.h"
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#include "ui/views/controls/button/button.h"
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#include "ui/views/view.h"
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#include "ui/views/widget/widget.h"
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#include "ui/views/widget/widget_observer.h"
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namespace electron {
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class WinFrameView;
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class WinCaptionButton;
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// Provides a container for Windows 10 caption buttons that can be moved between
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// frame and browser window as needed. When extended horizontally, becomes a
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// grab bar for moving the window.
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class WinCaptionButtonContainer : public views::View,
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public views::WidgetObserver {
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public:
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explicit WinCaptionButtonContainer(WinFrameView* frame_view);
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~WinCaptionButtonContainer() override;
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// Tests to see if the specified |point| (which is expressed in this view's
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// coordinates and which must be within this view's bounds) is within one of
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// the caption buttons. Returns one of HitTestCompat enum defined in
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// ui/base/hit_test.h, HTCAPTION if the area hit would be part of the window's
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// drag handle, and HTNOWHERE otherwise.
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// See also ClientView::NonClientHitTest.
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int NonClientHitTest(const gfx::Point& point) const;
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gfx::Size GetButtonSize() const;
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void SetButtonSize(gfx::Size size);
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// Sets caption button visibility and enabled state based on window state.
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// Only one of maximize or restore button should ever be visible at the same
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// time, and both are disabled in tablet UI mode.
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void UpdateButtons();
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private:
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// views::View:
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void AddedToWidget() override;
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void RemovedFromWidget() override;
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// views::WidgetObserver:
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void OnWidgetBoundsChanged(views::Widget* widget,
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const gfx::Rect& new_bounds) override;
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void ResetWindowControls();
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WinFrameView* const frame_view_;
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WinCaptionButton* const minimize_button_;
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WinCaptionButton* const maximize_button_;
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WinCaptionButton* const restore_button_;
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WinCaptionButton* const close_button_;
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base::ScopedObservation<views::Widget, views::WidgetObserver>
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widget_observation_{this};
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base::CallbackListSubscription subscription_ =
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ui::TouchUiController::Get()->RegisterCallback(
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base::BindRepeating(&WinCaptionButtonContainer::UpdateButtons,
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base::Unretained(this)));
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};
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} // namespace electron
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#endif // ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_CONTAINER_H_
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